/* SPDX-License-Identifier: GPL-2.0-only */ #include <acpi/acpi_device.h> #include <acpi/acpigen.h> #include <console/console.h> #include <device/i2c_simple.h> #include <device/device.h> #include "chip.h" #define MAX98927_ACPI_NAME "MAXI" #define MAX98927_ACPI_HID "MX98927" static void max98927_fill_ssdt(const struct device *dev) { struct drivers_i2c_max98927_config *config = dev->chip_info; const char *scope = acpi_device_scope(dev); struct acpi_i2c i2c = { .address = dev->path.i2c.device, .mode_10bit = dev->path.i2c.mode_10bit, .speed = config->bus_speed ? : I2C_SPEED_FAST, .resource = scope, }; struct acpi_dp *dp; if (!scope) return; /* Device */ acpigen_write_scope(scope); acpigen_write_device(acpi_device_name(dev)); acpigen_write_name_string("_HID", MAX98927_ACPI_HID); acpigen_write_name_integer("_UID", config->uid); if (config->desc) acpigen_write_name_string("_DDN", config->desc); acpigen_write_STA(acpi_device_status(dev)); /* Resources */ acpigen_write_name("_CRS"); acpigen_write_resourcetemplate_header(); acpi_device_write_i2c(&i2c); acpigen_write_resourcetemplate_footer(); /* Device Properties */ dp = acpi_dp_new_table("_DSD"); acpi_dp_add_integer(dp, "interleave_mode", config->interleave_mode); acpi_dp_add_integer(dp, "vmon-slot-no", config->vmon_slot_no); acpi_dp_add_integer(dp, "imon-slot-no", config->imon_slot_no); acpi_dp_write(dp); acpigen_pop_len(); /* Device */ acpigen_pop_len(); /* Scope */ printk(BIOS_INFO, "%s: %s address 0%xh\n", acpi_device_path(dev), dev->chip_ops->name, dev->path.i2c.device); } static const char *max98927_acpi_name(const struct device *dev) { struct drivers_i2c_max98927_config *config = dev->chip_info; if (config->name) return config->name; return MAX98927_ACPI_NAME; } static struct device_operations max98927_ops = { .read_resources = noop_read_resources, .set_resources = noop_set_resources, .acpi_name = max98927_acpi_name, .acpi_fill_ssdt = max98927_fill_ssdt, }; static void max98927_enable(struct device *dev) { struct drivers_i2c_max98927_config *config = dev->chip_info; dev->ops = &max98927_ops; if (config && config->desc) { dev->name = config->desc; } } struct chip_operations drivers_i2c_max98927_ops = { .name = "Maxim MAX98927 Codec", .enable_dev = max98927_enable };